|
|
|
|
| RDF |
The Resource Description Framework (RDF) integrates a variety of applications from library catalogs and world-wide directories to syndication and aggregation of news, software, and content to personal collections of music, photos, and events using XML as an interchange syntax. The RDF specifications provide a lightweight ontology system to support the exchange of knowledge on the Web.
|
The Dublin Core Metadata Initiative is an open forum engaged in the development of interoperable online metadata standards that support a broad range of purposes and business models. DCMI's activities include consensus-driven working groups, global workshops, conferences, standards liaison, and educational efforts to promote widespread acceptance of metadata standards and practices.
| About the DAML Language
The World Wide Web (WWW) contains a large amount information which is expanding at a rapid rate. Most of that information is currently being represented using the Hypertext Markup Language (HTML), which is designed to allow web developers to display information in a way that is accessible to humans for viewing via web browsers. While HTML allows us to visualize the information on the web, it doesn't provide much capability to describe the information in ways that facilitate the use of software programs to find or interpret it. The World Wide Web Consortium (W3C) has developed the Extensible Markup Language (XML) which allows information to be more accurately described using tags. As an example, the word Algol on a web site might represent a computer language, a star or an oceanographic research ship. The use of XML to provide metadata markup, such as Algol, makes the meaning of the work unambiguous. However, XML has a limited capability to describe the relationships (schemas or ontologies) with respect to objects. The use of ontologies provides a very powerful way to describe objects and their relationships to other objects. The DAML language is being developed as an extension to XML and the Resource Description Framework (RDF). The latest release of the language (DAML+OIL) provides a rich set of constructs with which to create ontologies and to markup information so that it is machine readable and understandable.
| Semantic Web Activity: Advanced Development
"Now, miraculously, we have the Web. For the documents in our lives, everything is simple and smooth. But for data, we are still pre-Web." -- Tim Berners-Lee, Business Model for the Semantic Web
"The bane of my existence is doing things that I know the computer could do for me." -- Dan Connolly, The XML Revolution
inside: Plan · Scheduling/Tracking · Collaboration/Annotation · Rules/Logic/ACL · XML Integration · Tools · DAML project · Events/Presentations
nearby: RDF · Web Design Issues · Web naming and addressing
discussion: RDF IG Scratchpad
www-rdf-interest · www-rdf-logic · www-rdf-calendar · www-rdf-rules
--------------------------------------------------------------------------------
Approach and Plans
Just as the early development of the Web depended on code modules such as libwww, W3C is devoting resources to the creation and distribution of similar core components that will form the basis for the Semantic Web. Our approach is Live Early Adoption and Demonstration (LEAD) -- using these tools in our own work.
For a big picture -- really big -- see the how/why project chart, which shows goals, components, dependencies, etc.:
| description
| description
| description
| description
| description
| description
|
Primer: Getting into RDF & Semantic Web using N3
,Tim Berners-Lee
|
DOM |
This specification defines the Document Object Model Level 1, a platform- and language-neutral interface that allows programs and scripts to dynamically access and update the content, structure and style of documents. The Document Object Model provides a standard set of objects for representing HTML and XML documents, a standard model of how these objects can be combined, and a standard interface for accessing and manipulating them.The goal of the DOM specification is to define a programmatic interface for XML and HTML. |
Row 1- Column 2 |
Row 1- Column 3 |
| 肅絜絝絞絟類 |
Row 1- Column 5 |
Row 1- Column 6 |
Row 1- Column 7 |
紁紂紃約紅紆 |
Row 1- Column 9 |
|---|
|
Row 2- Column 0 |
SCHEMA |
Schema: Structures specifies the XML Schema definition language, which offers facilities for describing the structure and constraining the contents of XML 1.0 documents, including those which exploit the XML Namespace facility. |
Row 2- Column 5 |
Row 2- Column 6 |
Row 2- Column 7 |
Row 2-Column 8 |
Row 2- Column 9 |
|---|
|
|
|
NAMESPACE |
XML namespaces provide a simple method for qualifying element and attribute names used in Extensible Markup Language documents by associating them with namespaces identified by URI references.
|
description
|
description
|
description
|
description
|
description
|
description
|
|
|
Row 3- Column 0 |
Row 3- Column 1 |
Row 3- Column 2 |
XML |
The Extensible Markup Language (XML) is the universal format for structured documents and data on the Web.
|
XML Cover Pages standards, including XSL, XSLT, XPath, XQuery, XLink, XPointer, XHTML, HyTime, DSSSL, CSS, SPDL, SVG, CGM, ISO-HTML,
The
|
Chinese XML Now!
|
description
|
description
|
description
|
Row 3- Column 6 |
Row 3- Column 7 |
Row 3- Column 8 |
Row 3- Column 9 |
|
Row 4- Column 0 |
Row 4- Column 1 |
| XML in 10 points
|
XSL |
>Extensible Stylesheet Language (XSL), a language for expressing stylesheets. It consists of two parts: a language for transforming XML documents, and an XML vocabulary for specifying formatting semantics. |
td>
|
|
Row 4- Column 8 |
Row 4- Column 9 |
|---|
|
Row 59- Column 0 |
Row 59- Column 1 |
Row 59- Column 2 |
Row 59- Column 3 |
Row 59- Column 4 |
CSS
| What's new?
Learning CSS
CSS Browsers
Authoring Tools
Specs
CSS Test Suites
W3C Core Styles
CSS Validator
Also: SAC, CSS3 roadmap, translations and up to Style
Cascading Style Sheets (CSS) is a simple mechanism for adding style (e.g. fonts, colors, spacing) to Web documents. For background information on style sheets, see the Web style sheets resource page. Discussions about CSS are carried out on the (archived) www-style@w3.org mailing list and on comp.infosystems.www.authoring.stylesheets.
|
Cascading Style Sheets, level 1
W3C Recommendation 17 Dec 1996, revised 11 Jan 1999
|
Cascading Style Sheets, level 2 CSS2 Specification W3C Recommendation 12-May-1998
|
Row 59- Column 7 |
Row 59- Column 8 |
|---|
|
Row 5- Column 0 |
Row 5- Column 0 |
Row 5- Column 1 |
Row 5- Column 2 |
5 3 |
| XSLT |
XSL Transformations (XSLT)a language for transforming XML documents into other XML documents.XSLT is designed for use as part of XSL, which is a stylesheet language for XML. In addition to XSLT, XSL includes an XML vocabulary for specifying formatting. XSL specifies the styling of an XML document by using XSLT to describe how the document is transformed into another XML document that uses the formatting vocabulary.
|
Row 5- Column 7 |
Row 5- Column 8 |
Row 5- Column 9 |
|---|
|
Row 6- Column 0 |
Row 6- Column 0 |
Row 6- Column 1 |
Row 6- Column 2 |
Row 6- Column 3 |
Row 6- Column 4 |
XSLT Element Syntax Summary
|
XPATH |
XPath is a language for addressing parts of an XML document, designed to be used by both XSLT and XPointer.
|
Row 6- Column 8 |
Row 6- Column 9 |
|---|
|
Row 7- Column 0 |
Row 7- Column 0 |
Row 7- Column 1 |
Row 7- Column 2 |
Row 7- Column 3 |
Row 7- Column 4 |
Row 7- Column 5 |
Row 7- Column 6 |
XLINK |
This specification defines the XML Linking Language (XLink), which allows elements to be inserted into XML documents in order to create and describe links between resources. It uses XML syntax to create structures that can describe links similar to the simple unidirectional hyperlinks of today's HTML, as well as more sophisticated links.
|
Row 79 |
Row 710 |
Row 711 |
|---|
|
|
|
|
|
|
|
|
|
W3C XML Pointer, XML Base and XML Linking
|
XHTML |
This specification defines the Second Edition of XHTML 1.0, a reformulation of HTML 4 as an XML 1.0 application, and three DTDs corresponding to the ones defined by HTML 4. The semantics of the elements and their attributes are defined in the W3C Recommendation for HTML 4. These semantics provide the foundation for future extensibility of XHTML. Compatibility with existing HTML user agents is possible by following a small set of guidelines. |
|---|
|
Row 9- Column 0 |
Row 9- Column 1 |
Row 9- Column 2 |
Row 9- Column 3 |
Row 9- Column 4 |
Row 9- Column 5 |
Row 9- Column 6 |
Row 9- Column 7 |
Row 9- Column 8 |
|
Row 9- Column 0 |
Row 9- Column 1 |
Row 9- Column 2 |
Row 9- Column 3 |
Row 9- Column 4 |
Row 9- Column 5 |
Row 9- Column 6 |
Row 9- Column 7 |
Row 9- Column 8 |
<TABLE> Table Elements |
| BORDER |
Sets the border size. |
<table border="0"> |
| CELLPADDING |
Pixels between the cell data and cell wall. |
<table cellpadding="5"> |
| CELLSPACING |
Pixels between cells. |
<table cellspacing="3"> |
| WIDTH |
Width of overall Table in pixels or percent. |
<table width="90%"> |
| HEIGHT |
Height of overall Table in pixels or percent. |
<table height="100"> |
| ALIGN |
Aligns the Table to the LEFT, RIGHT, or CENTER. |
<table align="center"> |
| BGCOLOR |
Specifies the background color of the Table. |
<table bgcolor="#808080"> |
<TR> Table Row Elements |
| ALIGN |
Aligns the Row to the LEFT, RIGHT, or CENTER. |
<tr align="right"> |
| VALIGN |
Vertically aligns the Row to the TOP, BOTTOM, BASELINE, or CENTER. |
<tr valign="top"> |
| BGCOLOR |
Specifies the background color of the Table. |
<tr bgcolor="black"> |
<TD> Table Cell Elements |
| ALIGN |
Aligns the Cell to the LEFT, RIGHT, or CENTER. |
<td align="center"> |
| VALIGN |
Vertically aligns the Cell to the TOP, BOTTOM, BASELINE, or CENTER. |
<td valign="bottom"> |
| WIDTH |
Width of the Cell in pixels or percent. |
<td width="25%"> |
| HEIGHT |
Height of the Cell in pixels or percent. |
<td height="40"> |
| NOWRAP |
Doesn't wrap the contents of the Cell. |
<td nowrap> |
| BGCOLOR |
Specifies the background color of the Table. |
<td bgcolor="#00FF23"> |
| COLSPAN |
Spans Cell columns. |
<td colspan="2"> |
| ROWSPAN |
Spans Cell rows. |
<td rowspan="2"> |
<TH> -
Table Headings can be used anywhere <TD></TD> is.
They act exactly the same and can be used as <TD> is,
except the Default is bold and centered. |
